Terms of use

Last updated November 4, 2026

Corekept is a small app for keeping promises to yourself. These terms say what you can expect from us and what we ask of you. They are short because the app is.

Who we are

Corekept is made and published by Synergy Tecnologia Ltda (CNPJ 51.033.169/0001-89), Rua Vicente Oropallo, 70, São Paulo, SP, 05351-025, Brazil ("we"). You can reach us at luis@synergytec.com.br. By installing or using Corekept you agree to these terms. If you don't agree, please don't use the app.

Your licence to use the app

We give you a personal, non-exclusive, non-transferable licence to install and use Corekept on devices you own or control, for your own use, under these terms and the rules of the store you got it from. The app, its design, its Inner animal and its name belong to us. You may not copy, sell, rent, modify, reverse engineer or redistribute it, except where the law allows it regardless of this clause.

What Corekept is, and isn't

Corekept helps you plan promises and mark whether you kept them. Only you know whether you did; the app takes your word for it. Trust, blocks and everything else in the app are tools for your own reflection. They are not medical, psychological or financial advice, and we make no promise about any result in your life.

Extreme mode adds friction by making Corekept your home screen and showing only the apps you allow. It is not a parental control or a security feature, and you can switch back at any time.

The Unlock

Corekept is free to use with three promises a day in one-day blocks. The Unlock is a one-time purchase that adds more promises, blocks of up to 14 days and Extreme mode, for good, on the store account that bought it. It is sold and billed by Google Play (and, when available, the App Store) under that store's terms, including its refund policy; we don't handle payments or hold your card details. Prices are shown in the store before you buy. Restoring the Unlock on a new phone works through the same store account.

Your data

Your promises stay on your phone, and the app has no account. What the app stores, what it sends and your choices are described in the privacy policy, which is part of these terms.

Acceptable use

Please don't use Corekept to break the law, to harm others, to interfere with the app or the services behind it, or to work around the Unlock. We may stop serving a device that does, and the store may act under its own rules.

Changes to the app and to these terms

We keep improving Corekept and may change, add or remove features, including with no notice when a change is minor or needed for security. If we change these terms in a way that matters, we'll update the date on this page and say so in the app or in the store listing. Using the app after a change means you accept the new terms.

No warranty

Corekept is provided as it is. To the extent the law allows, we make no warranty that it will be error-free, uninterrupted or fit for a particular purpose. Nothing here limits rights you have as a consumer under the law that applies to you, including Brazil's Consumer Defence Code.

Limitation of liability

To the extent the law allows, we are not liable for indirect, incidental or consequential loss arising from your use of Corekept, and our total liability for any claim connected with the app is limited to the amount you paid us for the Unlock, if any.

Ending the relationship

You can stop using Corekept at any time by uninstalling it, which also deletes what it stored on your phone. We may end this licence if you break these terms.

Law and disputes

These terms are governed by the laws of Brazil. Disputes go to the courts of São Paulo, SP, Brazil, without prejudice to any mandatory rule that lets you use the courts or consumer bodies where you live. If a clause is found invalid, the rest stays in force.

Contact

Questions about these terms: luis@synergytec.com.br.